81563580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3407}}^1$

素因数の和:3448

約数の個数: 144

約数和(自身を含む): 297722880

約数和(自身を除く): 216159300

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 114, 126, 133, 140, 171, 180, 190, 210, 228, 252, 266, 285, 315, 342, 380, 399, 420, 532, 570, 630, 665, 684, 798, 855, 1140, 1197, 1260, 1330, 1596, 1710, 1995, 2394, 2660, 3407, 3420, 3990, 4788, 5985, 6814, 7980, 10221, 11970, 13628, 17035, 20442, 23849, 23940, 30663, 34070, 40884, 47698, 51105, 61326, 64733, 68140, 71547, 95396, 102210, 119245, 122652, 129466, 143094, 153315, 194199, 204420, 214641, 238490, 258932, 286188, 306630, 323665, 357735, 388398, 429282, 453131, 476980, 582597, 613260, 647330, 715470, 776796, 858564, 906262, 970995, 1073205, 1165194, 1294660, 1359393, 1430940, 1812524, 1941990, 2146410, 2265655, 2330388, 2718786, 2912985, 3883980, 4078179, 4292820, 4531310, 5437572, 5825970, 6796965, 8156358, 9062620, 11651940, 13593930, 16312716, 20390895, 27187860, 40781790, 81563580]

約数ペア:

[(1, 81563580), (2, 40781790), (3, 27187860), (4, 20390895), (5, 16312716), (6, 13593930), (7, 11651940), (9, 9062620), (10, 8156358), (12, 6796965), (14, 5825970), (15, 5437572), (18, 4531310), (19, 4292820), (20, 4078179), (21, 3883980), (28, 2912985), (30, 2718786), (35, 2330388), (36, 2265655), (38, 2146410), (42, 1941990), (45, 1812524), (57, 1430940), (60, 1359393), (63, 1294660), (70, 1165194), (76, 1073205), (84, 970995), (90, 906262), (95, 858564), (105, 776796), (114, 715470), (126, 647330), (133, 613260), (140, 582597), (171, 476980), (180, 453131), (190, 429282), (210, 388398), (228, 357735), (252, 323665), (266, 306630), (285, 286188), (315, 258932), (342, 238490), (380, 214641), (399, 204420), (420, 194199), (532, 153315), (570, 143094), (630, 129466), (665, 122652), (684, 119245), (798, 102210), (855, 95396), (1140, 71547), (1197, 68140), (1260, 64733), (1330, 61326), (1596, 51105), (1710, 47698), (1995, 40884), (2394, 34070), (2660, 30663), (3407, 23940), (3420, 23849), (3990, 20442), (4788, 17035), (5985, 13628), (6814, 11970), (7980, 10221)]